0000000001018538
AUTHOR
Eva Gutierrez-sigut
The impact of visual cues during visual word recognition in deaf readers: An ERP study
Abstract Although evidence is still scarce, recent research suggests key differences in how deaf and hearing readers use visual information during visual word recognition. Here we compared the time course of lexical access in deaf and hearing readers of similar reading ability. We also investigated whether one visual property of words, the outline-shape, modulates visual word recognition differently in both groups. We recorded the EEG signal of twenty deaf and twenty hearing readers while they performed a lexical decision task. In addition to the effect of lexicality, we assessed the impact of outline-shape by contrasting responses to pseudowords with an outline-shape that was consistent (e…
Cerebral lateralisation during signed and spoken language production in children born deaf
Highlights • Children born deaf show typical left-hemisphere dominance during language production. • No evidence of an association between left-lateralisation and language proficiency. • Exposure to auditory speech via a cochlear implant is not a prerequisite for left hemisphere language dominance.
Deaf readers benefit from lexical feedback during orthographic processing
Published: 23 August 2019 It has been proposed that poor reading abilities in deaf readers might be related to weak connections between the orthographic and lexical-semantic levels of processing. Here we used event related potentials (ERPs), known for their excellent time resolution, to examine whether lexical feedback modulates early orthographic processing. Twenty congenitally deaf readers made lexical decisions to target words and pseudowords. Each of those target stimuli could be preceded by a briefly presented matched-case or mismatched-case identity prime (e.g., ALTAR-ALTAR vs. altar- ALTAR). Results showed an early effect of case overlap at the N/P150 for all targets. Critically, thi…
The time course of processing handwritten words: An ERP investigation
Available online 25 June 2021. Behavioral studies have shown that the legibility of handwritten script hinders visual word recognition. Furthermore, when compared with printed words, lexical effects (e.g., word-frequency effect) are magnified for less intelligible (difficult) handwriting (Barnhart and Goldinger, 2010; Perea et al., 2016). This boost has been interpreted in terms of greater influence of top-down mechanisms during visual word recognition. In the present experiment, we registered the participants’ ERPs to uncover top-down processing effects on early perceptual encoding. Participants’ behavioral and EEG responses were recorded to high- and low-frequency words that varied in scr…
Examining the contribution of motor movement and language dominance to increased left lateralization during sign generation in native signers
Highlights • We tested hemispheric lateralization for language in deaf native signers. • Signers were more strongly left lateralized for overt than covert sign generation. • We found stronger left lateralization for BSL than for English production. • Stronger left lateralization for BSL is not driven by motoric activity alone. • Stronger left lateralization is not driven by language dominance.
Early use of phonological codes in deaf readers: An ERP study.
Previous studies suggest that deaf readers use phonological information of words when it is explicitly demanded by the task itself. However, whether phonological encoding is automatic remains controversial. The present experiment examined whether adult congenitally deaf readers show evidence of automatic use of phonological information during visual word recognition. In an ERP masked priming lexical decision experiment, deaf participants responded to target words preceded by a pseudohomophone (koral - CORAL) or an orthographic control prime (toral - CORAL). Responses were faster for the pseudohomophone than for the orthographic control condition. The N250 and N400 amplitudes were reduced fo…